S
M
T
W
T
F
S
26
85°
56°
27
87°
57°
28
87°
57°
29
86°
60°
30
89°
52°
31
80°
53°
1
80°
52°
2
81°
56°
3
81°
52°
4
78°
53°
5
80°
55°
6
86°
58°
7
88°
57°
8
81°
59°
9
85°
54°
10
85°
57°
11
83°
57°
12
78°
50°
13
79°
58°
14
81°
57°
15
80°
56°
16
79°
55°
17
78°
54°
18
79°
52°
19
80°
56°
20
79°
55°
21
76°
51°
22
79°
54°
23
83°
57°
24
76°
54°
25
77°
58°
26
Hist. Avg.
84°
56°
27
Hist. Avg.
84°
55°
28
Hist. Avg.
84°
55°
29
Hist. Avg.
84°
55°
30
Hist. Avg.
83°
54°
31
Hist. Avg.
83°
54°
1
Hist. Avg.
83°
54°
2
Hist. Avg.
82°
53°
3
Hist. Avg.
82°
53°
4
Hist. Avg.
82°
53°
5
Hist. Avg.
81°
52°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
August Weather in Chelan
Chelan's August 2026 forecast shows daily high temperatures ranging from 76° to 89°, with overnight lows between 50° and 60°. The average high for August is 81° with an average low of 55°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how August weather will actually feel in Chelan. See also: September | October | November.
